2. Application: It is used for filler of the flame-retardant, fire-resistant, LSOH flame-retardant, fire (oxygen) separated, LSLH flame-retardant cables.

3. Function of the filler string in the flame-retardant cable component:A)It ensures that the cable is of good roundness.B)It can improve flame-retardant class of the cable when use filler with high oxygen index.C)It can fix the cable core in a stable position.D)It can increase cable's tensile strength.

4. Requirement to filler used for the flame-retardant cable:A)It mustn't absorb the moisture.B)Its operation temperature should be the same with that of the cable.C)It should not pollute the environment and do harm to human body in process of wrapping.D)It should have good tensile strength and certain elongation.

5. Storage: It should be stored in the dry and clean warehouse and the shelf life is 18 months after the manufacturing date.